THE GEOGRAPHY OF GROTON. 59 



Stony Brook — in Westford, the outlet of Forge Pond. 

 It was on this stream that John Prescott built a mill about 

 the year 1683. See "The Early Records of Groton " under 

 the dates of June 15, 1680, June 13, 1681, and April 25, 1682, 

 also the agreement following the record of the meeting held 

 on June 25, 1683. 



Swan Brook — was the brook near the divisional line 

 between Groton and Westford, which flows into Forge Pond. 

 See the entry of James Knop's lands, made on January 3, 

 1669, in " The Early Records of Groton." 



TuiTY Brook — contracted from Gratuity — a very small 

 stream which rises near the head of Farmers' Row and runs 

 through Hazle Grove into the Nashua River below Fitch's 

 Bridge. 



Unquetenassett Brook — often called Unkety — a 

 stream formed by the union of Walnut Run, Hawtree Brook, 

 and one or two small tributaries, and running northerly 

 through Skull Meadow and that part of Dunstable formerly 

 Groton, into the Nashua. 



Walnut Run — a brook issuing from the sides of the 

 Chestnut Hills, and uniting with Hawtree Brook and one or 

 two other streams, forms the Unquetenassett. 



Also the name of a place — perhaps it was the mouth of a 

 stream — on the Nashua River where in olden times there 

 was a bridge. It stood further up the river than Fitch's 

 Bridge. 



Wrangling Brook — in West Groton, a mile and a half 

 in length — meanders through Quasoponagon Meadow, and 

 then empties into the Nashua a short distance below the Red 

 Bridge. Miss Hill lives near this brook, which accounts for 

 the frequent mention of the Quasoponagon meadow. 



